Reducing-valve.



PATENTED MAR. 3, 1903.

S. M. VAUGLAIN.

REDUCING VALVE.

APPLICATION FILED MAR. 25, 1901.

2 SHEETSSHEET 1.

N0 MODEL.

THE uonms PETERS co. PHOTOLITHQH WA$HINGTON. a. c.

No. 722,058. I PATENTED MAR. 3, 1903.

S. M. VAUGLAIN. REDUCING VALVE.

APPLIUATION FILED MAR. 25, 1901.

- 2 SHEETS-SHEET 2.

TTno STATES PATENT ()FFICE.

SAMUEL M. VAUOLAIN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO BURNHAM,WILLIAMS & COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A FIRM.

REDUCING-VALVE.

SPECIFICATION forming part of Letters Patent No. 722,058, dated March 3,1903.

Application filed March 25, 1901. Serial No. 52,854. (No model.)

To all whom it may concern: valve, having the central opening 1), portsI),

Be it known that I, SAMUEL M.VAUCLAIN,a and a flange Z2 at its rear end.B is a cap citizen of the United States, residing in Philaarranged tofit on the end of the body portion delphia, Pennsylvania, have inventedcertain B of the Valve, and this cap is secured in po- 5 Improvements inReducingValves, of which sition by a bolt 2', having a flange t" and ahead the following is a specification. The bolt is passed through theopeningin The main object of my invention is to imthe cap and is screwedinto a threaded openprove the construction of spring-actuated reing inthe body B. The flange t" rests against ducing-valves, so that themovement of the the cap and holds it in position, and the roller [0valve will be greater than the expansion or f on the lever F restsagainst the head 2' of contraction of the spring. the bolt. Between thecap B and the flange A further object of the invention is to pro- 11 ofthe body portion B are three rings E E vide means so that the outwardmovement of E which are slipped over the body portion the valve can beregulated and to construct of the valve, as clearly shown in Fig. 1. The

15 the valve so that the parts can be readily ascentral ring E has portse, which aline with sembled. the ports I) of the body portion B, and theIn the accompanying drawings, Figure 1 is ring E is held in alinement bymeans of apin a sectional view of my improved reducingb on the bodyportion entering a recess 6 in valve. Fig. 2 is an end view, and Fig. 8is a the ring E. The ring E is reduced at each :0 sectional view, of theparts of the piston deside 6 and suitable packing-rings m are tached.mounted on the reduced portion of the ring A is the valve-casing, inwhich is a port a E, as shown in Fig. 1. E is a ring having a in linewith the inlet-port C from the highsingle reduced portion 6 arranged toreceive pressure drum. In the end of the casing is a packing-ring m, andthe ring E has a re- 25 an outlet-port O, communicating with the ducedportion e, shaped to receive a packinglow-pressure drum. The oppositeend of the ring m so that when the parts of the valve casing is open.Mounted within the casing are assembled, as in Fig. 1, there are two isa valve B. This valve is hollow and is open packing-rings between theports of the valve toward the outlet-port O and closed at the and eachend thereof, so as to prevent leak- 30 opposite end. Passagesbcommunicate with age between the valve and the casing. The

- the central opening I) and, when the valve is parts of the valve canbe readily assembled in the mid-position, with the port a. and held inplace by the bolt 1'.

The valve-casing A has an extension A, By the above construction it willbe seen and pivoted to a lug f on the extension is a that the movementof the valve is greatly in 35 lever F, having a rollerf, bearing againstthe excess of the expansion and contraction of end of the valve B.Coupled to the lever F the spring, which is of great advantage in reat fis a rod G,which passes through an openducing-valves and especiallythose used in ing in the extension A and has at its opporeducing thepressure of compressed air, and site end nuts 9 g and a washerg'.Mounted I find by mounting the roller on the end of 40 between thewasher and the extension A is the lever and allowing the roller to bearupon 0 a coiled spring I, which can be set to any dethe end of the valvethat a much more delisired pressure by means of the nuts g g. cateregulation can be attained than where a D is a stud screwed into thecasingA. This lever is connected to the valve by a pin-andstud projectsthrough a slot f in a lever F, slot connection, and by making the valvein 5 and on the threaded portion of the stud are the mannerdescribed theparts can be readily two nuts (I d, which can be adjusted on the removedfor repacking or repairs and can be stud to limit the outward movementof the quickly assembled. lever F and the valve B. The screw-stud D mayhoused for another The valve B is constructed as follows: Repurpose thansimply that of limiting the out- 50 ferring to Figs. 1 and 3, B is thebody of the ward movement of the lever-that is, it can 10 be used forforcing and holding the valve back, so that the ports of the valve willaline with the port of the casing in order to pro- Videa clear openingin the event of the packing getting out of order or the sticking of thevalve. The reducing-valve would then simply be an air-passage, and theair would be out down by using the ordinary throttlevalve of the systemuntil the reducing-valve was fixed.

I claim as my invention- 1. The combination in a reducing-valve, of acasing, inlet and outlet ports therein, a cylindrical valve, aspring-actuated lever resting against the valve, said valve having abody portion, a cap and intermediate rings, the central of said ringshaving ports alining with the port of the body portion, and packingmounted between the rings, substantially as described.

2. The combination in a red ucing-valve, of the casing havinginlet andoutlet ports, a cylindrical valve mounted in said casing, a springpressure device bearing against the valve, said valve having a flangedbody portion, a cap, a series of rings mounted between the cap and theflange of the body portion,

ports in the central ring and packing mounted between the several ringsand the flange oi the body portion and the cap, with a bolt securing thecap to the body portion, said cap holding the rings and packing inplace, substantially as described.

3. The combination in a reducing-valve, of a casing having inlet andoutlet passages, a spring pressure device bearing against the saidvalve, the valve having a flanged body portion, said body portion beingopen at the center and having radiating ports, a cap, and rings andpacking mounted between the cap and the flange of the body portion, abolt passing through an opening in the cap and into the body portion,said bolt holding the cap, rings and packing in position, the head ofthe bolt acting as a bearing for the spring pressure device,substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

SAMUEL M. VAUCLAIN.

Witnesses:

MERLE MIDDLEsER, FRED WOOLLUM,

